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@jimh 5V DC and USB can be recharged
@jpvonoy pinMode(25, OUTPUT); digitalWrite(25, LOW);
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You can refer to the sequence from left to right TXD RXD IO0 RST GND 3.3V to use other serial port modules for programming.
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The model you selected doesn't seem to apply to your country. Maybe SIM7600NA will be better .
Here is the product link of T-PCIE for reference :
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See https://community.lilygo.cc/topic/30/can-t-download-firmware-on-sim7600g-most-of-the-time for detail.
@ckuehnel https://github.com/Xinyuan-LilyGO/LilyGo-HiGrow/tree/master/src You can use this program directly. It will generate a web page and then display the data of DS18B20.
@vince925 Excuse me, What are the SDA pin and SCL pin of the I2C protocol you use? Whether the hardware connection and I2C scan pins are consistent
@joter Sorry. T3 is not using Espressif driver, but using ch9102 driver chip. I now send you the driver link of win10
http://www.wch.cn/downloads/CH343SER_EXE.html
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The role of the blue font is to download
@marmou Good job. You are awesome👍
reference
Currently T-Watch does not have this function, we will refer to your opinions so that we will create new products that can meet this requirement in the future.
Yes, crystal burrs cause the problem.It has now been fixed in the latest version